about 20 to 15 degrees (Fahrenheit) is pretty cold for your board. I have had it shut off going slow and have gotten push back when I still have 20%. Just be aware of the temp you're riding at because it will drain your battery faster the colder it is out. Float on!

Not in the bay area but I have done countless tire changes. I would recommend giving it a try! Find a great video on youtube. If you can't break the bead with your bare hands feel free to take it to the local tire shop to see if they can help you out. I was very hesitant about taking my board apart but it is nothing to worry about. Feel free to message me if you have any questions!